Booster socket wrench



July 3, 1951 s. M. AKlNs BOOSTER SOCKET WRENCH Fi ledv March 7, 1947 2Sheets-Sheet 1 www ,rl-175 l July 3, 1951 Filed March 7, 1947 s. M.AKlNs 2,558,897

BOOSTER SOCKET WRENCH 2 Sheets-Sheet 2 l l f l l r i n I www s PatentedJuly 3, 1951 UNITED STATES PATENT OFFICE BOOSTER SOCKET WRENCH Stuart M.Akins, Curundu, Canal Zone Application March 7, 1947, Serial No. 733,101

This invention relates to a wrench but more particularly andspeciiically to a socket wrench having associated therewith a gearingwhich enables great force or pressure to be applied, with ease, forloosening or tightening nuts and bolts.

The primary object of the invention is the provision of an improvedwrench'of the socket type.

Another'object of the invention is the provision of a wrench of the typedescribed in whichl a novel and highly efficient gear arrangement isprovided through which the tightening and loosening o nuts and bolts isgreatly facilitated.

Another and still further object of the invention is the provision of animproved wrench of the character described for operation upon nuts andbolts which are so placed or positioned as to be diicult to reach andoperate upon.

Still a further object of the invention is the provision of a wrench ofthe character described which is simple of construction, comparativelycheapvof manufacture, and highly durable and efficient in operation.

Other objects and novel features of construction and improved results ofthe invention will appear from the following description when read inthe light of the accompanying drawings.

Although reference in the description is made to a socket wrench it isto be reocgnized that a nut or bolt head engaging element other than asocket can be provided without departing from the inventive concept andthat specific uses of the invention other than those specificallydescribed can be made but would still follow within the inventiveconcept.

In the drawings:

Fig. 1 is a view in side elevation of the wrench, a portion of the coverbeing broken away.

Fig. 2 is a vertical sectional view.

Fig. 3 is a top plan view with the cover in horizontal section.

Fig. 4 is a horizontal sectional view.

Fig. 5 is a detail view of the driving shaft below the pinion.

Fig. 6 is a vertical sectional View through the driving pinion.

Describing the improved wrench in detail with reference to theaccompanying drawings, A is a plate or head having an extending handlelike portion I. The plate A is provided with an opensided interiorchamber D. The top 2 of the plate, adjacent the handle, is provided witha shoulder 3. A cover B extends over the top of the plate and has adepending front end 4 and sides 4a and 4b. Screws 5 secure the cover topto the shoulder 3 of the plate and screws 6 secure the cover to 1 claim.(c1. s1-57)v the front end face of the plate. This construction forms achamber C at the top of the plate. The side walls of the cover form sideclosures for the interior chamber D.

A driving pinion E embodies a gear 'I disposed in the chamber C and anupwardly extending circular collar 8 which passes through and is freelyrotatable in the cover top. This collar is hollow and at its externalend is squared to form a reception socket 9 for the squared socket Illof a socket wrench F.,

Manipulation of the socket wrench by its handle II will cause rotationof the driving pinion.

A shaft G has an upper end I2 rotatable in the plate top 2 and withinthe chamber D a squared portion I3 below which is a round bearingportion I4 rotatable in the plate bottom i5. The lower external end ofthe shaft is squared, as at I 6, and is adapted to t and carry a socketwrench I'I which is detachably secured in place by a spring-actuatedball I8.

The pinion E is secured to the upper end of the shaft G by a screw I9and immediately below the plate bottom I5 the shaft is provided withresilient keeper ring 20.

A gear 2I is provided and has a square opening in which the squareportion of the shaft G is disposed.

A second shaft Hhas at its upper end a gear 22 which is in the chamber Cand meshes with the drive pinion gear l. A bearing like portion 23 ofthis shaft is rotatable in the plate top 2. A second gear 24 of thisshaft is in the chamber D and meshes with the gear 2|. A second bearinglike portion 25 of the shaft is rotatable in the plate bottom I5. Thelower external end 26 of the shaft is provided with a groove 21 havingtherein a resilient keeper ring 28.

A shackle 29, having an extending chain 30, is detachably received tothe handle I by a pin 3 I.

Because of the removable cover F, the readily detachable pinion E, andthe readily removable keeper rings 20 and 28 the device can be quicklyand easily assembled or disassembled and parts can be convenientlyreplaced or repaired should this prove necessary.

The purpose of the invention is to provide what might well be called abooster for a socket wrench because the invention in practice permitsgreat force to be easily applied to the socket wrench for heavy work,that is where a strong force must be applied in loosening or tighteninglbolts or nuts, and provides this force even where the working space islimited.

In operation, the wrench socket I'I is applied to a nut and the pinion Eis rotated by rotation of the operating handle II. This results inturning the plate A which will continue its rotation until its handle Iengages a fixed part of the equipment or device being worked on. Whenthis contact occurs the plate rotation stops and the wrench socket isthen rotated by the pinion gear 'I through the gears 22, 24 and 2|. Thegear 2| rotates the shaft G which carries the wrench socket I1 and greatforce can and is applied to this socket without the application of anygreat effort being applied to the operating handle II.

Should the conditions be such that there is no abutment for the platehandle I then the plate is anchored against rotation by attaching thechain 30 to a convenient xed object.

Attention is directed to the curve or off-set 32 in the plate handle I.The amount of this oi-set will be determined by placing the strainresulting from the wrench socket I'I on a level plane with the handleportion I of the device.

A desirable feature of the device is that the pressure being exerted canbe measured by means of a torque wrench handle and a chart figured forthe gear ratio. This chart will serve as a guide in the use of thewrench.

This booster will permit the use of a much smaller socket wrench F thanwould be the case if thepower were applied to the wrench socket I1directly by the Wrench F.

What I claim is:

A booster socket wrench comprising a handle, a head positioned adjacentone end of Ysaid handle and secured thereto, a first shaft extendingtransversely through said head and rotatably.v supported therein, oneend of said shaft projecting out of said head and being of multisidedconfiguration for attachment of a socket wrench thereto, a pinionpositioned adjacent the end remote from said projecting end of saidshaft and mounted `for rotation about said shaft as an aXis, a secondshaft extending transversely through said head and spaced from saidfirst shaft and rotatably mounted in said head, a first gear mounted onsaid second shaft for rotation therewith and in meshing engagement withsaid pinion, ansecond pinion arranged in side by side spaced relationwith respect to said rst gear and mounted on said second shaft forrotation therewith, a second gear arranged in side by side spacedrelation with respect to said first pinion mounted onv said first shaftfor rotation therewith, and in meshing engagement with said secondpinion, anda socket positioned exteriorly and transversely of said headand having one end xedly secured to said first pinion and adapted todrivingly engage the squared socket of a socket Wrench. Y

STUART M. AKINS.

REFERENCES CITED The following references are of record inl the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,648,134 Kientz Nov. 8, 19271,885,605 Kightlinger Nov. 1, 1932 2,302,853 Gordon Nov. 24, 1942FOREIGN PATENTS Number Country Date 373,436 Germany Apr. 12, 1923747,887

France Dec. 20, 1932

